Headset Earbuds Altec Lansing UHS301 SnugFit Stereo Earbud Headphones with Microphone General Features: Gray color 2.5 mm gold-plated audio plug fits into cell phone headphone jacks SnugFit earbud design delivers passive noise reduction and high fidelity at lower listening levels In-line microphone In-line Call Answer/End Button In-line Volume Control with Mic Mute switch Moisture resistant design